JP2009173422A - Accelerator operation device of reach forklift - Google Patents

Accelerator operation device of reach forklift Download PDF

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JP2009173422A
JP2009173422A JP2008015782A JP2008015782A JP2009173422A JP 2009173422 A JP2009173422 A JP 2009173422A JP 2008015782 A JP2008015782 A JP 2008015782A JP 2008015782 A JP2008015782 A JP 2008015782A JP 2009173422 A JP2009173422 A JP 2009173422A
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accelerator
grip
armrest
reach
lever
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JP5322445B2 (en
JP2009173422A5 (en
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Koji Shiizaki
弘司 椎崎
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TCM Corp
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TCM Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To operator an accelerator without releasing a hand from an assist grip in an accelerator operation device applied to a reach forklift, and in particular installed to a control panel of a driver's seat. <P>SOLUTION: This reach forklift comprises an accelerator lever 2 installed to a control panel A inclinably in a forward and backward direction and controlling a forward and backward movement depending on an inclining operation, an armrest 3 installing near a right side of the accelerator lever 2 for locating an arm of a driver, and an assist grip 4 installed on a front side of the armrest 3 and gripped with the driver to supporting its body. A grip part 10 of the assist grip 4 serves as an accelerator grip 5 rotatable in a forward and backward direction, always keeping a neutral position with a reset spring 12, and controlling a forward and backward movement depending on a rotary operation. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、例えばリーチ式フォークリフトに適用され、とりわけ運転席のコントロールパネルに設けられるアクセル操作装置の改良に関する。   The present invention is applied to, for example, a reach-type forklift, and particularly relates to an improvement in an accelerator operating device provided on a control panel of a driver's seat.

従来、この種のリーチ式フォークリフトとしては、例えば特許文献１及び特許文献２に記載されたものが知られている。
これは、コントロールパネルに前後方向に傾倒可能に設けられて傾倒操作に依り前後進制御を行なうアクセルレバーと、アクセルレバーの右側近傍に設けられて運転者の腕を載せる為のアームレストと、アームレストの前側に設けられて運転者が体を支える為に掴持するアシストグリップと、アクセルレバーの左側近傍に設けられてフォークのリーチとリフトとチルトの各操作を行う荷役レバー群とを備えている。 Conventionally, as this type of reach forklift, for example, those described in Patent Document 1 and Patent Document 2 are known.
This is provided on the control panel so that it can be tilted in the front-rear direction, and an accelerator lever that performs forward / backward control by tilting operation, an armrest that is provided near the right side of the accelerator lever and on which the driver's arm is placed, An assist grip that is provided on the front side and is held by the driver to support the body, and a cargo handling lever group that is provided in the vicinity of the left side of the accelerator lever and that performs fork reach, lift, and tilt operations.

特許第３００６３７２号公報Japanese Patent No. 3006372 特開平１１−１９９１９２号公報JP-A-11-199192

ところが、この様なものは、アクセルレバーの近傍に運転者の姿勢を安定させる為のアシストグリップを備え、前進時にはアシストグリップを握りながらアクセルレバーを操作できるものの、後進時にはアシストグリップから手を離す必要があり、その急制動時には運転者の姿勢が不安定になるので、危険であった。
つまり、従来のものは、アシストグリップから手を離さずにアクセル操作を行なう事ができなかった。 However, this type is equipped with an assist grip to stabilize the driver's posture in the vicinity of the accelerator lever. Although the accelerator lever can be operated while holding the assist grip when moving forward, it is necessary to release the hand from the assist grip when moving backward. This is dangerous because the driver's posture becomes unstable during sudden braking.
In other words, the conventional one cannot perform the accelerator operation without removing the hand from the assist grip.

本発明は、叙上の問題点に鑑み、これを解消する為に創案されたもので、その課題とする処は、アシストグリップから手を離さずにアクセル操作が行なえる様にしたリーチ式フォークリフトを提供するにある。   The present invention has been made in order to solve the problems described above, and a problem to be solved is a reach-type forklift that can perform an accelerator operation without releasing a hand from an assist grip. To provide.

本発明のリーチ式フォークリフトは、基本的には、コントロールパネルに前後方向に傾倒可能に設けられて傾倒操作に依り前後進制御を行なうアクセルレバーと、アクセルレバーの右側近傍に設けられて運転者の腕を載せる為のアームレストと、アームレストの前側に設けられて運転者が体を支える為に掴持するアシストグリップとを備えたリーチ式フォークリフトに於て、前記アシストグリップのグリップ部を、前後方向に回動可能で且つ復帰バネに依り常に中立位置を保持して回動操作に依り前後進制御を行なうアクセルグリップにした事に特徴が存する。   The reach-type forklift of the present invention is basically provided on the control panel so as to be tiltable in the front-rear direction, and is provided in the vicinity of the right side of the accelerator lever. In a reach-type forklift that includes an armrest for placing an arm and an assist grip that is provided on the front side of the armrest and that a driver holds to support the body, the grip portion of the assist grip is It is characterized by an accelerator grip that can rotate and always maintains a neutral position by a return spring, and performs forward / reverse control by a rotation operation.

アクセルレバーを把持して前方向に傾倒させると、前進制御が行なわれると共に、後方向に傾倒させると、後進制御が行なわれる。
アシストグリップのグリップ部であるアクセルグリップを把持して前方向に回動させると、前進制御が行なわれると共に、後方向に回動させると、後進制御が行なわれる。
アクセルレバーやアクセルグリップを操作する際には、必要に応じて運転者の腕がアームレストの上に載せられる。
アクセルレバーの他にアクセルグリップを備えているので、前進時には、アクセルグリップを把持してアクセルレバーを前方向に傾倒操作すると共に、後進時には、アクセルグリップを把持してこれを後方向に回動操作する事ができる。
アクセルレバーやアクセルグリップを操作する所謂アクセル操作時は、常にアクセルグリップつまりアシストグリップのグリップ部を把持する事ができるので、運転者の姿勢が安定化されて、危険になる惧れが無い。 When the accelerator lever is gripped and tilted forward, forward control is performed, and when tilted backward, reverse control is performed.
When an accelerator grip that is a grip portion of the assist grip is gripped and rotated forward, forward control is performed, and when it is rotated backward, reverse control is performed.
When operating the accelerator lever or the accelerator grip, the driver's arm is placed on the armrest as necessary.
Since it has an accelerator grip in addition to the accelerator lever, it grips the accelerator grip when moving forward and tilts the accelerator lever forward, and when moving backward, it holds the accelerator grip and rotates it backward. I can do it.
During the so-called accelerator operation of operating the accelerator lever or the accelerator grip, the accelerator grip, that is, the grip portion of the assist grip can be always held, so that the posture of the driver is stabilized and there is no risk of danger.

アシストグリップは、アームレストの前部に一体的に設けられているのが好ましい。この様にすれば、アシストグリップとアームレストとを一体的に作製できるので、構造が簡単化されてコストの低減を図る事ができる。   The assist grip is preferably provided integrally with the front portion of the armrest. In this way, since the assist grip and the armrest can be manufactured integrally, the structure can be simplified and the cost can be reduced.

アクセルグリップの回動操作に依る前後進制御よりもアクセルレバーの傾倒操作に依る前後進制御が優先されているのが好ましい。この様にすれば、アクセルレバーが優先されているので、従来のものとの違和感が無く、容易に操作が行なえる。   It is preferable that the forward / reverse control based on the tilting operation of the accelerator lever is prioritized over the forward / backward control based on the turning operation of the accelerator grip. In this way, since the accelerator lever is prioritized, there is no sense of incongruity with the conventional one, and the operation can be performed easily.

本発明に依れば、次の様な優れた効果を奏する事ができる。
（１） アクセルレバー、アームレスト、アシストグリップ、アクセルグリップとで構成し、とりわけ、アシストグリップのグリップ部を、前後方向に回動可能で且つ復帰バネに依り常に中立位置を保持して回動操作に依り前後進制御を行なうアクセルグリップにし、所謂前後進制御を行なうアクセルグリップを設けたので、アシストグリップから手を離さずにアクセル操作が行なえる。
（２） アシストグリップのグリップ部を、前後方向に回動可能で且つ復帰バネに依り常に中立位置を保持して回動操作に依り前後進制御を行なうアクセルグリップにするだけであるので、既存のものへも容易に適用できる。 According to the present invention, the following excellent effects can be achieved.
(1) Consists of an accelerator lever, armrest, assist grip, and accelerator grip. In particular, the grip portion of the assist grip can be rotated in the front-rear direction and can be rotated by holding the neutral position at all times by a return spring. Therefore, since the accelerator grip for performing forward / reverse control is provided and the accelerator grip for so-called forward / backward control is provided, the accelerator operation can be performed without releasing the hand from the assist grip.
(2) Since the grip portion of the assist grip can be rotated in the front-rear direction and is always an accelerator grip that maintains the neutral position by the return spring and performs the forward-reverse control by the rotation operation. It can be easily applied to things.

以下、本発明の実施の形態を、図面に基づいて説明する。
図１は、本発明のリーチ式フォークリフトのアクセル操作装置を示す斜視図。図２は、図１の要部を縦断して示す説明図である。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an accelerator operating device of a reach type forklift according to the present invention. FIG. 2 is an explanatory view illustrating a main part of FIG.

アクセル操作装置１は、アクセルレバー２、アームレスト３、アシストグリップ４、アクセルグリップ５とからその主要部が構成されて居り、リーチ式フォークリフトに適用される。   The accelerator operating device 1 is composed of an accelerator lever 2, an armrest 3, an assist grip 4, and an accelerator grip 5, and is applied to a reach-type forklift.

アクセルレバー２は、コントロールパネルＡに前後方向に傾倒可能に設けられて傾倒操作に依り前後進制御を行なうもので、この例では、コントロールパネルＡの下側に設けられるアクセルユニット６と、これに傾倒（回動）可能に設けられてコントロールパネルＡに形成されたスリットＢに挿通されるレバー７と、これの上端に付設されるノブ８とを備えて居り、アクセルユニット６には、レバー７の回転方向と回転角度を検出する回転検出器（ポテンショメータ）９が設けられている。
コントロールパネルＡは、運転席の前側に設けられて居り、アクセルレバー２の左側には、フォークのリーチとリフトとチルトの各操作を行う荷役レバー群Ｃが設けられている。 The accelerator lever 2 is provided on the control panel A so as to be tiltable in the front-rear direction, and performs forward / reverse control by a tilting operation. In this example, an accelerator unit 6 provided below the control panel A, and The lever 7 is provided so as to be tiltable (rotatable) and inserted into a slit B formed in the control panel A, and a knob 8 attached to the upper end thereof. The accelerator unit 6 includes a lever 7. A rotation detector (potentiometer) 9 is provided for detecting the rotation direction and the rotation angle.
The control panel A is provided on the front side of the driver's seat, and on the left side of the accelerator lever 2 is provided a cargo handling lever group C for performing fork reach, lift and tilt operations.

アームレスト３は、アクセルレバー２の右側近傍に設けられて運転者の腕を載せる為のもので、この例では、矩形の厚板状を呈し、コントロールパネルＡ上に設けられている。   The armrest 3 is provided in the vicinity of the right side of the accelerator lever 2 for placing the driver's arm. In this example, the armrest 3 has a rectangular thick plate shape and is provided on the control panel A.

アシストグリップ４は、アームレスト３の前側に設けられて運転者が体を支える為に掴持するもので、この例では、倒立略Ｕ型で中空状を呈し、左右方向に水平なグリップ部１０と、これの両端から前傾状態で垂下する左右の支持部１１とを備えて居り、両支持部１１の下端がアームレスト３の前部に固定されて所謂一体的に設けられている。   The assist grip 4 is provided on the front side of the armrest 3 and is gripped by the driver to support the body. In this example, the assist grip 4 is an inverted U-shaped hollow, and has a horizontal grip portion 10 in the horizontal direction. The left and right support portions 11 hang down from both ends in a forwardly inclined state, and the lower ends of both support portions 11 are fixed to the front portion of the armrest 3 so as to be integrally provided.

アクセルグリップ５は、アシストグリップ４のグリップ部１０を、前後方向に回動可能で且つ復帰バネ１２に依り常に中立位置を保持して回動操作に依り前後進制御を行なうにしたもので、この例では、アシストグリップ４の両支持部１１に対して前後方向（左右方向軸廻り）に回動可能に設けられたアシストグリップ４のグリップ部１０と、アシストグリップ４のグリップ部１０と一方（右側）の支持部１１との間に介設されてグリップ部１０を常に中立位置に戻す為の復帰バネ１２と、アシストグリップ４のグリップ部１０と他方（左側）の支持部１１との間に介設されてグリップ部１０の回転方向と回転角度を検出する回転検出器（ポテンショメータ）１３とを備えている。   The accelerator grip 5 is configured such that the grip portion 10 of the assist grip 4 can be rotated in the front-rear direction, and the neutral position is always maintained by the return spring 12, and the forward / reverse control is performed by the rotation operation. In the example, the grip portion 10 of the assist grip 4 provided to be rotatable in the front-rear direction (around the left-right axis) with respect to both support portions 11 of the assist grip 4, and the grip portion 10 of the assist grip 4 and one (right side) ) Between the support portion 11 and the return spring 12 for always returning the grip portion 10 to the neutral position, and between the grip portion 10 of the assist grip 4 and the other (left side) support portion 11. A rotation detector (potentiometer) 13 that is provided and detects the rotation direction and rotation angle of the grip portion 10 is provided.

前記アクセルレバー２の回転検出器９とアクセルグリップ５の回転検出器１３は、夫々ケーブル１４，１５を介してコントローラ１６に接続されて居り、このコントローラ１６に依ってリーチ式フォークリフトのドライブモータ（図示せず）が制御される様になっている。
つまり、アクセルレバー２の傾動操作又はアクセルグリップ５の回動操作に依りリーチ式フォークリフトが前後進制御される様になって居り、これらは、コントローラ１６に依ってアクセルレバー２の傾倒操作に依る前後進制御の方が優先される様に設定されている。 The rotation detector 9 of the accelerator lever 2 and the rotation detector 13 of the accelerator grip 5 are connected to a controller 16 via cables 14 and 15, respectively, and a drive motor (see FIG. (Not shown) is controlled.
That is, the reach-type forklift is controlled to move forward and backward depending on the tilting operation of the accelerator lever 2 or the turning operation of the accelerator grip 5, and these are the front and rear depending on the tilting operation of the accelerator lever 2 by the controller 16. It is set to give priority to the decimal control.

次に、この様な構成に基づいてその作用を述解する。
アクセルレバー２を把持して前方向に傾倒させると、回転検出器９に依り回転方向と回転角度が検出されてその信号がコントローラ１６に送られ、これに依りドライブモータが前進制御されてリーチ式フォークリフトが前進される。逆に、アクセルレバー２を把持して後方向に傾倒させると、回転検出器９に依り回転方向と回転角度が検出されてその信号がコントローラ１６に送られ、これに依りドライブモータが後進制御されてリーチ式フォークリフトが後進される。 Next, the operation will be described based on such a configuration.
When the accelerator lever 2 is gripped and tilted forward, the rotation direction and the rotation angle are detected by the rotation detector 9 and the signal is sent to the controller 16, and the drive motor is forwardly controlled by this to reach the reach type. The forklift is advanced. Conversely, when the accelerator lever 2 is gripped and tilted backward, the rotation detector 9 detects the rotation direction and rotation angle and sends the signal to the controller 16, and the drive motor is reversely controlled accordingly. Reach forklift is moved backward.

アクセルグリップ５を把持して前方向に回動させると、回転検出器１３に依り回転方向と回転角度が検出されてその信号がコントローラ１６に送られ、これに依りドライブモータが前進制御されてリーチ式フォークリフトが前進される。逆に、アクセルグリップ５を把持して後方向に回動させると、回転検出器１３に依り回転方向と回転角度が検出されてその信号がコントローラ１６に送られ、これに依りドライブモータが後進制御されてリーチ式フォークリフトが後進される。
アクセルレバー２やアクセルグリップ５を操作する際には、必要に応じて運転者の腕がアームレスト３の上に載せられる。 When the accelerator grip 5 is gripped and rotated in the forward direction, the rotation detector 13 detects the rotation direction and rotation angle and sends the signal to the controller 16, whereby the drive motor is controlled to advance and reach. Forklift is moved forward. Conversely, when the accelerator grip 5 is gripped and rotated backward, the rotation detector 13 detects the rotation direction and rotation angle and sends the signal to the controller 16, and the drive motor controls the reverse drive accordingly. Then, the reach forklift is moved backward.
When the accelerator lever 2 or the accelerator grip 5 is operated, the driver's arm is placed on the armrest 3 as necessary.

アクセルレバー２の他にアクセルグリップ５を備えているので、前進時には、アクセルグリップ５を把持してアクセルレバー２を前方向に傾倒操作すると共に、後進時には、アクセルグリップ５を把持してこれを後方向に回動操作する事ができる。
アクセルレバー２やアクセルグリップ５を操作する所謂アクセル操作時には、常にアクセルグリップ５つまりアシストグリップ４のグリップ部１０を把持する事ができるので、運転者の姿勢が安定されて、危険になる惧れが無い。 Since the accelerator grip 5 is provided in addition to the accelerator lever 2, the accelerator grip 5 is gripped when moving forward and the accelerator lever 2 is tilted forward, and the accelerator grip 5 is gripped and moved backward when moving backward. It can be rotated in the direction.
When the accelerator lever 2 or the accelerator grip 5 is operated, the accelerator grip 5, that is, the grip portion 10 of the assist grip 4 can always be gripped, so that the driver's posture is stabilized and there is a risk of danger. No.

尚、アシストグリップ４は、先の例では、アームレスト３に一体的に設けられていたが、これに限らず、例えばアームレスト３とは別体でこれの前側のコントロールパネルＡに固定されていても良い。
アクセルレバー２とアクセルグリップ５は、先の例では、アクセルレバー２の傾倒操作の方を優先する様にしたが、これに限らず、例えばアクセルグリップ５の回動操作の方を優先する様にしても良い。 Although the assist grip 4 is provided integrally with the armrest 3 in the previous example, the assist grip 4 is not limited to this and may be fixed to the front control panel A separately from the armrest 3, for example. good.
In the previous example, the accelerator lever 2 and the accelerator grip 5 are given priority to the tilting operation of the accelerator lever 2, but the present invention is not limited to this. For example, the turning operation of the accelerator grip 5 is given priority. May be.

本発明のリーチ式フォークリフトのアクセル操作装置を示す斜視図。The perspective view which shows the accelerator operating device of the reach type forklift of this invention. 図１の要部を縦断して示す説明図。Explanatory drawing which cuts and shows the principal part of FIG.

符号の説明Explanation of symbols

１…アクセル操作装置、２…アクセルレバー、３…アームレスト、４…アシストグリップ、５…アクセルグリップ、６…アクセルユニット、７…レバー、８…ノブ、９…回転検出器、１０…グリップ部、１１…支持部、１２…復帰バネ、１３…回転検出器、１４，１５…ケーブル、１６…コントローラ、Ａ…コントロールパネル、Ｂ…スリット、Ｃ…荷役レバー群。   DESCRIPTION OF SYMBOLS 1 ... Accelerator operating device, 2 ... Accelerator lever, 3 ... Armrest, 4 ... Assist grip, 5 ... Accelerator grip, 6 ... Accelerator unit, 7 ... Lever, 8 ... Knob, 9 ... Rotation detector, 10 ... Grip part, 11 DESCRIPTION OF SYMBOLS ... Support part, 12 ... Return spring, 13 ... Rotation detector, 14, 15 ... Cable, 16 ... Controller, A ... Control panel, B ... Slit, C ... Cargo handling lever group.

Claims (3)

コントロールパネルに前後方向に傾倒可能に設けられて傾倒操作に依り前後進制御を行なうアクセルレバーと、アクセルレバーの右側近傍に設けられて運転者の腕を載せる為のアームレストと、アームレストの前側に設けられて運転者が体を支える為に掴持するアシストグリップとを備えたリーチ式フォークリフトに於て、前記アシストグリップのグリップ部を、前後方向に回動可能で且つ復帰バネに依り常に中立位置を保持して回動操作に依り前後進制御を行なうアクセルグリップにした事を特徴とするリーチ式フォークリフトのアクセル操作装置。   An accelerator lever that can be tilted in the front-rear direction on the control panel and that controls forward and backward by tilting operation, an armrest that is placed near the right side of the accelerator lever and on which the driver's arm is placed, and that is provided on the front side of the armrest In a reach-type forklift equipped with an assist grip that the driver grips to support the body, the grip portion of the assist grip can be rotated in the front-rear direction and always in a neutral position by a return spring. An accelerator operating device of a reach type forklift characterized in that it is an accelerator grip that is held and controlled to move forward and backward by rotating operation. アシストグリップは、アームレストの前部に一体的に設けられている請求項１に記載のリーチ式フォークリフトのアクセル操作装置。   The accelerator operating device for a reach-type forklift according to claim 1, wherein the assist grip is integrally provided at a front portion of the armrest. アクセルグリップの回動操作に依る前後進制御よりもアクセルレバーの傾倒操作に依る前後進制御が優先されている請求項１に記載のリーチ式フォークリフトのアクセル操作装置。   The accelerator operation device for a reach type forklift according to claim 1, wherein the forward / reverse control based on the tilting operation of the accelerator lever is prioritized over the forward / backward control based on the rotation operation of the accelerator grip.
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